Enthalpies

Thermodynamic data

This table gives a few thermodynamic data for yttrium. Most values are those given in the NBS technical notes (reference 1) after conversion from the units used within those notes. Values labelled with an asterisk (*) are Committee on Data for Science and Technology (CODATA) agreed values for the thermodynamic properties of key chemical substances (reference 2). These values are published in a number of places including the WWW (reference 3).

State

ΔfH°

ΔfG°

S°

CpH

H°298.15‑H°0

Units

kJ mol‑1

kJ mol‑1

J K‑1 mol‑1

J K‑1 mol‑1

kJ mol‑1

Solid

0

0

44.4

26.5

5.97

Gas

421

381

179.4

25.9

6.86

Notes

This tables gives a few thermodynamic data. Most values are those given in the NBS technical notes (reference 1) after conversion from the units used within those notes. Values labelled with an asterisk (*) are Committee on Data for Science and Technology (CODATA) agreed values for the thermodynamic properties of key chemical substances (reference 2). These values are published in a number of places including the WWW (reference 3).